Drones and Digital Twins Offer New Tools to Track Permafrost Thaw Threatening Arctic Infrastructure

Permafrost thaw is rapidly undermining the foundations of Alaska’s coastal towns, with a 2025 study estimating $37‑$51 billion in damage to buildings, roads and pipelines. A 2026 analysis projects that, under high‑emission scenarios, 80 % of structures, 60 % of roads and 90 % of pipelines could be at risk by the 2090s. Engineers are turning to drone‑borne very‑low‑frequency electromagnetic (VLF‑EM) surveys to map subsurface ice loss without drilling, and to digital‑twin models that combine heat‑transfer physics with machine learning to forecast future settlement and load capacity. Recent fieldwork in Utqiaġvik and Wainwright has validated these methods, revealing uneven thaw patterns that can trigger bluff collapses and shoreline erosion.